Compare 645013 vs 645017
| Property | 645013 | 645017 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6450131 | 311 × 208071 |
| Prime factorization | 645013 | 31 × 20807 |
| Divisors count | 2 | 4 |
| Divisors | 1, 645013 | 1, 31, 20807, 645017 |
| Number of properties | 4 | 1 |
| Additive primes | 20503rd | |
| Primes | 52448th | |
| Semiprimes | 138169th | |
| Sexy primes (1st member) | 11360th | |
| Twin primes (2nd member) | 5670th | |
| Roman numberals | ||
| Base 2 | 100111010111100101012 | 100111010111100110012 |
| Base 3 | 10122022101013 | 10122022101123 |
| Base 4 | 21311321114 | 21311321214 |
| Base 5 | 1311200235 | 1311200325 |
| Base 6 | 214541016 | 214541056 |
| Base 7 | 53243357 | 53243427 |
| Base 8 | 23536258 | 23536318 |
| Base 9 | 11827119 | 11827159 |
| Base 10 | 64501310 | 64501710 |
| Base 11 | 40067611 | 40067a11 |
| Base 12 | 27133112 | 27133512 |
| Base 13 | 19778513 | 19778913 |
| Base 14 | 12b0c514 | 12b0c914 |
| Base 15 | cb1ad15 | cb1b215 |
| Base 16 | 9d79516 | 9d79916 |